EX POST FACTO ESTIMATION OF THE DAMAGE OF QUAYWALLS CAUSED BY GROUND MOTION OF THE 2011 OFF THE PACIFIC COAST OF TOHOKU EARTHQUAKE

Abstract

 Many fishing ports were struck by the 2011 off the Pacific coast of Tohoku Earthquake and following tsunami. Observed deformation at quaywalls was brought by both ground motion and tsunami. To divide both effects correctly, seismic response analyses were carried out. In the analysis, ground motion of each sites were estimated using site effect replacement method. As a result, Deformation caused by ground motion and tsunami was separately estimated. The effects of liquefaction due to ground motion were also estimated.